--- product_id: 238175618 title: "Balun One Nine v2 - Small Low-Cost 9:1 (1:9) Balun with Input Protection & Enclosure for HF & Shortwave. Great for Software Defined Radio (RTL-SDR & SDRPlay), Ham It Up, and Other Capable Radios" brand: "nooelec" price: "€ 52.24" currency: EUR in_stock: true reviews_count: 6 category: "Noo Elec" url: https://www.desertcart.pt/products/238175618-balun-one-nine-v2-small-low-cost-9-1-1 store_origin: PT region: Portugal --- # 300ps ultra-fast ESD protection Compact 38x25mm size Accurate up to 80MHz+ frequency Balun One Nine v2 - Small Low-Cost 9:1 (1:9) Balun with Input Protection & Enclosure for HF & Shortwave. Great for Software Defined Radio (RTL-SDR & SDRPlay), Ham It Up, and Other Capable Radios **Brand:** nooelec **Price:** € 52.24 **Availability:** ✅ In Stock ## Summary > 📡 Elevate your HF SDR game with the Balun One Nine v2 — small size, massive signal! ## Quick Answers - **What is this?** Balun One Nine v2 - Small Low-Cost 9:1 (1:9) Balun with Input Protection & Enclosure for HF & Shortwave. Great for Software Defined Radio (RTL-SDR & SDRPlay), Ham It Up, and Other Capable Radios by nooelec - **How much does it cost?** € 52.24 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/238175618-balun-one-nine-v2-small-low-cost-9-1-1) ## Best For - nooelec enthusiasts ## Why This Product - Trusted nooelec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Next-Level ESD Defense:** 8kV contact discharge protection with lightning-fast 300ps response - • **Versatile Connectivity:** Includes 3 antenna adapters + SMA to SMA barrel for seamless integration - • **Optimized Signal Clarity:** Low insertion loss and improved SNR by up to 7dB over previous models - • **Ultra-Compact Powerhouse:** Small footprint, big HF performance for your SDR setup - • **Premium Build, Made in USA:** Custom aluminum enclosure with 2-year warranty for peace of mind ## Overview The Balun One Nine v2 is a compact, high-performance 9:1 balun designed for HF and shortwave SDR radios. Housed in a durable custom aluminum enclosure, it offers ultra-fast ESD protection rated to 8kV, supports frequencies up to 80MHz+, and includes multiple antenna adapters for versatile use. Engineered in North America with a 2-year warranty, it delivers low insertion loss and enhanced signal-to-noise ratio, making it the go-to choice for serious amateur radio and SDR enthusiasts. ## Description Balun One Nine v2 is a very small 9:1 balun meant for attaching long wire and dipole HF antennas to your HF capable SDR, radio or Ham It Up upconverter. It has an SMA output port and 3 different terminal block input options (all included) for your antenna coax. Balun One Nine includes an AntennaGuard varistor on the input, protecting your SDR setup from spurious ESD. The ESD protection is excellent--it passes IEC61000-4-2, an 8kV contact discharge test, with a response time of just 300ps. At 38mm x 25.0mm in total size, this balun is a bit larger than our popular Balun One Nine v1, but also has better HF performance and can be used to even lower frequencies. For more details, please see the Downloads tab on the product page. It was designed to be light in weight and light on your wallet. Very low insertion loss with a maximum input power of +24dBm. Designed primarily for HF amateur bands, but specifications are accurate to frequencies up to 80MHz+. This is the retail version, which comes assembled into a custom aluminum enclosure and includes 3 antenna connector adapters and a free male SMA to male SMA barrel connector! Review: Perfect - Perfect Review: signal/bruit meilleur de +5@7db que le modèle de base - j'avais acheté le modèle moins cher sans boîtier et ca fonctionnait.. avec celui-ci j'ai pu comparer les deux versions et j'ai remarqué un signal/bruit meilleur de 5 @ 7db avec la même antenne.. noter que le boîtier peinturé n'a pas de contact avec le connecteur "sma" et donc, j'ai sablé le trou du "sma" de sorte que le boîtier soit mise à la masse via le connecteur (la différence est négligeable, environ 2db) mais ça me semblait important.. naturellement, j'aurais dû acheter celui-ci au tout début.. il n'est pas étanche mais le circuit interne amélioré est plus performant (même sans le boîtier).. ## Features - Very small 9:1 balun meant for attaching long wire and dipole HF antennas to your HF capable SDR, radio or Ham It Up upconverter - Assembled into a custom aluminum enclosure and includes 3 antenna connector adapters and a male SMA to male SMA barrel connector - At 38mm x 25.0mm in total size, this balun is a bit larger than our popular Balun One Nine v1, but also has better HF performance and can be used to even lower frequencies - Very low insertion loss with a maximum input power of +24dBm. Designed primarily for HF amateur bands, but specifications are accurate to frequencies up to 80MHz+ - Made in North America. 2 year warranty! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08HGSYB7R | | Antenna | Radio | | AntennaDescription | Radio | | Best Sellers Rank | 44,820 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 830 in Radio Communication | | Brand | NooElec | | Brand Name | NooElec | | Colour | Black | | Country of Origin | USA | | Customer Reviews | 4.7 out of 5 stars 203 Reviews | | Impedance | 50 Ohms | | Item Dimensions L x W x H | 38L x 25W x 38H millimetres | | Manufacturer | Nooelec Inc. | | Manufacturer Part Number | 100806 | | Model Number | Balun One Nine v2 | | Number of Channels | 1 | | Number of Items | 1 | | Number of channels | 1 | | Product dimensions | 38L x 25W x 38H millimetres | | Unit Count | 1.0 count | ## Product Details - **Antenna:** Radio - **Brand:** NooElec - **Colour:** Black - **Impedance:** 50 Ohms - **Manufacturer:** Nooelec Inc. - **Number of Packs:** 1 - **Number of channels:** 1 - **Number of items:** 1 - **Product dimensions:** 38L x 25W x 38H millimetres - **Unit count:** 1.0 count ## Images ![Balun One Nine v2 - Small Low-Cost 9:1 (1:9) Balun with Input Protection & Enclosure for HF & Shortwave. Great for Software Defined Radio (RTL-SDR & SDRPlay), Ham It Up, and Other Capable Radios - Image 1](https://m.media-amazon.com/images/I/81GJ+gDheQL.jpg) ![Balun One Nine v2 - Small Low-Cost 9:1 (1:9) Balun with Input Protection & Enclosure for HF & Shortwave. Great for Software Defined Radio (RTL-SDR & SDRPlay), Ham It Up, and Other Capable Radios - Image 2](https://m.media-amazon.com/images/I/71LIo+mJCJL.jpg) ![Balun One Nine v2 - Small Low-Cost 9:1 (1:9) Balun with Input Protection & Enclosure for HF & Shortwave. Great for Software Defined Radio (RTL-SDR & SDRPlay), Ham It Up, and Other Capable Radios - Image 3](https://m.media-amazon.com/images/I/81aaMD-cTYL.jpg) ![Balun One Nine v2 - Small Low-Cost 9:1 (1:9) Balun with Input Protection & Enclosure for HF & Shortwave. Great for Software Defined Radio (RTL-SDR & SDRPlay), Ham It Up, and Other Capable Radios - Image 4](https://m.media-amazon.com/images/I/715C1LJYVpL.jpg) ![Balun One Nine v2 - Small Low-Cost 9:1 (1:9) Balun with Input Protection & Enclosure for HF & Shortwave. Great for Software Defined Radio (RTL-SDR & SDRPlay), Ham It Up, and Other Capable Radios - Image 5](https://m.media-amazon.com/images/I/717xXvOAqfL.jpg) ## Questions & Answers **Q: Should there be continuity when checking the wire connectors on the one side of the balun to the sma plug? i have no continuity thru the balun.** A: No continuity. This device is RF sensitive so won’t show anything. Be sure the ground wire is on the right side with the sma pointing forward.mine works fine on random wire 75ft long. **Q: For we oldies which is gnd Very Specifically** A: the ground is on the right side of the green terminals. if you lay it flat with the words up the terminal at the top of the letters is ground **Q: Of the two screw terminals for an antenna one is ground? Whis is which? There not labeled.** A: When looking at the Balun One Nine logo with the green connector pointing to the left, the bottom terminal is ground. Thank you for your interest! **Q: Have the nooelec balun one nine v2 on a longwire and eton 750. i works well. do you sell a power amp that would work my this config for more stations?** A: We are very glad to hear you are liking the unit! Unfortunately we do not sell any power amps or power baluns at this time. However, if you are looking for an RX-only amp for HF, LaNA HF is a great choice and is available on Amazon. Thanks! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect *by A***R on 17 February 2026* Perfect ### ⭐⭐⭐⭐⭐ signal/bruit meilleur de +5@7db que le modèle de base *by M***C on 14 March 2023* j'avais acheté le modèle moins cher sans boîtier et ca fonctionnait.. avec celui-ci j'ai pu comparer les deux versions et j'ai remarqué un signal/bruit meilleur de 5 @ 7db avec la même antenne.. noter que le boîtier peinturé n'a pas de contact avec le connecteur "sma" et donc, j'ai sablé le trou du "sma" de sorte que le boîtier soit mise à la masse via le connecteur (la différence est négligeable, environ 2db) mais ça me semblait important.. naturellement, j'aurais dû acheter celui-ci au tout début.. il n'est pas étanche mais le circuit interne amélioré est plus performant (même sans le boîtier).. ### ⭐⭐⭐⭐⭐ Buen Balun *by G***X on 23 July 2022* Excelente para recepción (no transmita con el) supera a varias antenas que probé en mi radio de onda corta, compre una extensión electrica de 10 metros, corte los extremos, dividí los cables y se los coloqué a este Balun, lo coloqué en V con mástil a 5 metros. Soy de Ciudad grande, no se oía gran cosa más que en la noche, con este artefacto a todas horas se escucha radio de varias partes del mundo. Muy bien. ## Frequently Bought Together - Balun One Nine v2 - Small Low-Cost 9:1 (1:9) Balun with Input Protection & Enclosure for HF & Shortwave. Great for Software Defined Radio (RTL-SDR & SDRPlay), Ham It Up, and Other Capable Radios - NooElec Ham It Up Plus v2 - Extend The Range of Your RTL-SDR, NESDR or Other Radio Down to 300Hz. HF/MF/LF/VLF/ULF Upconverter and Panadapter w/TCXO & Switchable LNA/Passthrough Options - Nooelec RTL-SDR v5 Bundle - NESDR Smart HF/VHF/UHF (100kHz-1.75GHz) Software Defined Radio. Premium RTLSDR w/ 0.5PPM TCXO, SMA Input, Aluminum Enclosure & 3 Antennas. RTL2832U & R820T2-Based Radio --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/238175618-balun-one-nine-v2-small-low-cost-9-1-1](https://www.desertcart.pt/products/238175618-balun-one-nine-v2-small-low-cost-9-1-1) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-19*